Atown had about 2120 acres of pine trees 40 years ago. only about 13% of the pine trees remain. how many acres of pine trees remain?

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

The table shown below gives the approximate enrollment at the university of michigan every fifty years. how many more students were enrolled at the university of michigan in 1950 than in 1900?